Search Results for: lichenoid

Differential Diagnosis in Dermatopathology

Lichen nitidus vs. Lichen striatus

A condition in which deposits of a fibrillary protein (amyloid) appear in the skin as macules, papules, and nodules consequent to the effects of local factors, or as patches (which may be purpuric), plaques, nodules, and tumors as a result of a syst…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Follicular Degeneration Syndrome?

…bvious clinically. The earliest findings observed by us are a lichenoid peri-infundibular infiltrate of lymphocytes followed by progressive peri-infundibular fibroplasia. As time goes on, the lichenoid infiltrate wanes and the fibrosis waxes, eventua…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

Images 10.47.1A: Perivascular dermatitis, interface, patchy lichenoid + 10.47.1B: Keratocytes with steel-gray nuclei, “margination” of chromatin, ballooned cytoplasm, and multinucleate and necrotic keratocytes = Infection by herpesvirus,…

Clinical Case Studies

Graft-Versus-Host Disease

…erythema, erythroderma, or other erythematous eruptions). The lichenoid form of chronic cutaneous graft-versus-host disease (GVHD) was suspected because of the morphology and pattern of the lesions in the setting of the patient’s chemotherapeut…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Pustular Dermatitis

…-infundibulitis, namely, that of keratosis pilaris in which a lichenoid peri-infundibulitis, first of lymphocytes and then of histiocytes, is brought into being by leakage of infundibular contents into the dermis secondary to compromise of the wall o…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Colors Stereotypical for Diseases Specific?

…ped papules, which are usually pruritic.” Weedon D. The lichenoid reaction pattern (‘interface dermatitis’). In: Weedon D, ed. Skin Pathology, 2nd ed. Edinburgh: Churchill Livingstone, 2002: 33. “There are [in lichen aureus] g…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Common Baldness—an Inflammatory Disease?

…arly lesions demonstrated hair follicle miniaturization and a lichenoid inflammatory infiltrate targeting the upper follicle region.” Zinkernagel MS, Trueb RM. Fibrosing alopecia in a pattern distribution: patterned lichen planopilaris or andro…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Eczema?

…more other patterns of inflammatory response, such as ‘lichenoid’ or ‘papulosquamous,’ rather than obsessively trying assassinate ‘eczema’ every 10 years. This is a futile endeavor, like trying to assassinate Supe…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

-oid?

…#8220;oid-oid disease” in lieu of exudative discoid and lichenoid chronic dermatosis (which is a circumlocution for and evasion from the word nummular dermatitis). In brief, dermatologists and pathologists can function marvelously without recou…